Window-ventilator.



No. 728,447. Y PATENTED MFA-Y 19, 1903.

T. fr. noLL.

' WINDOW VENTILATOR. ApPLIoATIoN rum rma. 2s. 190s.

N0 IODEL.

, UNITED STATES` atented May 19, 1905i. i

'.PATENT OFFICE.

Tl-IEODORE T. DOLL,.OVF CHICAGO, ILLINOIS, ASSIGNOR TO DOLL da PORCH,

' .OF CHIOAGQILLINOIS, A FIRM.

WINDOW-*VENT*u Aron.

SPEGZUE"IIIC.`A'I.ION forming part of Letters Patent No. 728,447',-dated May 19, 1903. Application tiled February Z8, 1903. Serial No.145,502. (No model.)

To aZZ whom if; may concern..-

Be it known that I, THEODORE T. DOLL, a citizen of the United States ofAmerica, residing at Chicago, in the county of Cook and State ofIllinois, haveinvented certain new and useful Improvements inWindow-Ventilators, of which the following is a specification.

My invention relates to certain new and useful improvements inWindow-ventilators; 'to and its object is to provide a ventilator whichcan readily be attached to windows of variou s spective of a window andsash provided with4 my improved ventilator. Fig.Y 2 is a section Ninline 2 2 of Fig. 1. Fig. 3 is a section in the line 3 3 of Fig. 1, andFig. etfis a perspec tive of one end of the deflector removed from itsplace in the sash.

Referring to the drawings, A A are two telescoping parts ot' a delector.is provided with a triangular portion a. at right angles to it, theedges of the said triangular portion being provided with tianges a. Thebottom edge of the portions A A is likewise provided 'with a flange a2and in the same plane with andpreferably integral with the iianges a.Each of the portions A A',

the adjacent triangular portion a, and the' flanges is preferablyforined'of one piece of sheet metal stamped into shape; but of coursethis method of construction is by no means essential. The deiiector issecured in place, as shown in Fig. 1, in-a window-frame by placing thetianges a outside the windowstops and elongating the telescopingdetlector as far as possible, the flange a2 extending down outside thewindow sill. Two hooks are provided on the window-,frame which en- 5ogage with eyes or rings a3 on the deiector to hold the device inposition. When this po- Each part v sition is reached, the window isbrought down, running over the flanges a and wedgng said anges betweenitselfand the window-stops.

The deiiector, it will be seen from the above description and from thedrawings, extends from the window-sill upward and inward into the room,providing a passage for air in an upward direction, so that air canenter the room without the possibility of rain coming 6o in also.

The regulation of the amount of draft entering is eected by acover` B,composed of two telescoping sections, said cover having ears B at itsends and at right angles to it. These ears are provided with slots b,each of said slots havingtwo notches b' b2. The cover is secured uponthe delector by bolts b3, which extend through the dei'lector and alsothrough the slots b. ment of the slots and notches is such that thecover can Ybe secured in a plurality of positions, as may be desired.The cover may be swung beside the delector, as shown in Fig.

1, so as to leave the entire space above the deflector open. It may beheld in the position shown in Fig. 3, wherein thenut is in engagementwith the notch b2, when a large opening ispresented for the entrance ofair, and the cover turns the air directlyA into the-room in- 8o stead ofupward. The cover may also be let down from the position-shown in Fig. 3either to a position where-the nuts engage with the notches b', in whichcase a smaller opening is afforded for the entrance of air, or it ma be.let down entirely to close the opening. Other positions in which the'cover can be placed will also be apparent.

In Fig. 1 will beseen two washers a4, secured in placeA between thetelescoping mem- 9o bers A A' of the deiector. These Washers are offelt, and their purpose is to prevent Vscratching of the two memberswhen slid one It will be noted that the arrange- 7o lt is to be notedthat the cover B is cut away at its ends t'o form notches b4 b4, so thatwhen it is closed it will corne substantially into contact with theglass of the window, the notches being provided for the two sides of theWindow-sash. The edge of the cover is wired, as shown in the drawings,to prevent the sash from being scratched and also to give the device aneat and finished appearance.

I realize that considerable variation can be made in the details of thedevice above described, and for that reason do not desire to limitmyself to the specific construction shown and described.

I claim as new and desire to secure by Letters Patentl. The combinationwith a dellector, and means for securing the saine to a Windowfraine,said dellector when in position, extending diagonally inward from thewindowsill, of a cover provided with ears overlapping the sides ot' saiddefiector, slots in said ears, bolts extending through the sides of saiddeflector and said slots, and means for engaging said bolts withdifferent portions of said slots to secure the covei` in a plurality ofvarying positions.

2. The combination with a deflect-o1', and means for securing the sameto a window frame, said defieotor when in position eX- tendingdiagonally upward and inward from the window-sill, of a cover providedwith ears extending over the sides of Said deflector, notched slots insaid ears, and bolts passing through the sides of said deflector andnotched slots.

ln witness whereof I have signed the above application for LettersPatent, at Chicago, in the county of Cook and State of Illinois, this24th day of February, A. D. 1903.

THEO DORE T. DOLL.

Vitnesses:

NICHOLAUS SCHRAMM, WILLIAM BAUMANN.

